TY JOUR TI STABILITY OF THE METAL FRAME ELEMENTS WHEN WORKING IN CRAMPED CONDITIONS KW metal frame KW thin-walled profile KW foam concrete JO Modern Technologies and Scientific and Technological Progress AU Savenkov, A.I. AU Zaenec, E.O. AU Ketner, A.V. PY 2022 IS 2021 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»